Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity (Details 2)

v3.3.1.900
Shareholders' Equity (Details 2) - USD ($)
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Jan. 02, 2015
Oct. 21, 2009
Shareholders' Equity        
Outstanding Options, Weighted Average Remaining Contractual Life (in years) 5 years 2 months 22 days 4 years 6 months 21 days    
Options exercisable at January 2, 2016 $ 0 $ 212    
Closing stock price used for calculation of intrinsic value     $ 1.05 $ 1.97
5.05 to 6.41 [Member]        
Shareholders' Equity        
Exercise price, minimum   $ 5.05    
Exercise price, maximum   6.41    
3.55 to 4.69 [Member]        
Shareholders' Equity        
Exercise price, minimum   3.55    
Exercise price, maximum   4.69    
2.22 to 2.80 [Member]        
Shareholders' Equity        
Exercise price, minimum   2.22    
Exercise price, maximum   2.80    
1.87 [Member]        
Shareholders' Equity        
Exercise price, minimum   1.87    
Exercise price, maximum   $ 1.89